Land Cover Map 1990 (25m raster, GB) v2

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https://doi.org/10.5285/1be1912a-916e-42c0-98cc-16460fac00e8

This is the most recent version of this dataset

This dataset consists of the 25m raster version of the Land Cover Map 1990 (LCM1990) for Great Britain. The 25m raster product consists of three bands: Band 1 - raster representation of the majority (dominant) class per polygon for 21 target classes; Band 2 - mean per polygon probability as reported by the Random Forest classifier (see supporting information); Band 3 - percentage of the polygon covered by the majority class. The 21 target classes are based on the Joint Nature Conservation Committee (JNCC) Broad Habitats, which encompass the entire range of UK habitats. This dataset is derived from the vector version of the Land Cover Map, which contains individual parcels of land cover and is the highest available spatial resolution. The 25m raster is the most detailed of the LCM1990 raster products both thematically and spatially, and it is used to derive the 1km products.

LCM1990 is a land cover map of the UK which was produced at the UK Centre for Ecology & Hydrology by classifying satellite images (mainly from 1989 and 1990) into 21 Broad Habitat-based classes. It is the first in a series of land cover maps for the UK, which also includes maps for 2000, 2007, 2015, 2017, 2018 and 2019.

LCM1990 consists of a range of raster and vector products and users should familiarise themselves with the full range (see related records, the UKCEH web site and the LCM1990 Dataset documentation) to select the product most suited to their needs.

This work was supported by the Natural Environment Research Council award number NE/R016429/1 as part of the UK-SCAPE programme delivering National Capability.

Publication date: 2020-06-17

5 citations

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More information

View numbers valid from 01 June 2023 Download numbers valid from 11 November 2021 (information prior to this was not collected)

Format

TIFF

Spatial information

Study area

Spatial representation type

Raster

Spatial reference system

OSGB 1936 / British National Grid

Temporal information

Temporal extent

1988-01-01 to 1990-12-31

Provenance & quality

The 25m raster product is the most detailed of the LCM1990 raster products, both thematically and spatially, and it is derived from the LCM1990 vector product. For LCM1990, per-pixel classifications were conducted, using a random forest classification algorithm. The resultant classifications were then mosaicked together, with the best classifications taking priority. This produced a per-pixel classification of the UK, which was then 'imported' into the spatial framework, recording a number of attributes, including the majority class per polygon which is the Land Cover class for each polygon. The 25m raster product consists of three bands: Band 1 - raster representation of the majority (dominant) class per-polygon for the 21 target classes; Band2 - mean per polygon probability as reported by the Random Forest classifier; Band 3 -percentage of polygon covered by the majority class.

Licensing and constraints

Licence terms and conditions apply

Cite this dataset as:

Rowland, C.S.; Marston, C.G.; Morton, R.D.; O’Neil, A.W. (2020). Land Cover Map 1990 (25m raster, GB) v2. NERC Environmental Information Data Centre. https://doi.org/10.5285/1be1912a-916e-42c0-98cc-16460fac00e8

BibTeX RIS

This dataset is included in the following collections

Land Cover Map 1990

Citations

Gosal, A. S., Evans, P. M., Bullock, J. M., Redhead, J., Charlton, M. B., Cord, A. F., Johnson, A., & Ziv, G. (2022). Understanding the accuracy of modelled changes in freshwater provision over time. In Science of The Total Environment (Vol. 833, p. 155042). Elsevier BV. https://doi.org/10.1016/j.scitotenv.2022.155042

Office for National Statistics (2022). Climate change insights, natural and rural environments, UK: November 2022. Office for National Statistics. https://www.ons.gov.uk/releases/climatechangeinsightslanduse

Office for National Statistics (2023). England natural capital accounts: 2023. Office for National Statistics. https://www.ons.gov.uk/releases/englandnaturalcapitalaccounts2023

Office for National Statistics (2022). Habitat extent and condition, natural capital, UK: 2022. Office for National Statistics. https://www.ons.gov.uk/releases/naturalcapitalukextentandcondition2021

Office for National Statistics (2023). Scotland natural capital accounts: 2023. Office for National Statistics. https://www.ons.gov.uk/releases/scotlandnaturalcapitalaccounts2023